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Finding the Fourth Proportional to 262,597.61, 393,958.82 and 85,104.74

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Solution

The fourth proportional to 262,597.61, 393,958.82 and 85,104.74 is: 127,677.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,597.61 : 393,958.82 = 85,104.74 : x
  2. Step 2: Convert to fraction form
    262,597.61/393,958.82 = 85,104.74/x
  3. Step 3: Cross multiply
    262,597.61x = 393,958.82 × 85,104.74
  4. Step 4: Simplify right side
    262,597.61x = 33,527,764,144.47
  5. Step 5: Solve for x
    x = 33,527,764,144.47/262,597.61
  6. Step 6: Final answer
    x = 127,677.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.